Home / 14,381.28-21,570.46-5,020.40

Finding the Fourth Proportional to 14,381.28, 21,570.46 and 5,020.40

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Solution

The fourth proportional to 14,381.28, 21,570.46 and 5,020.40 is: 7,530.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,381.28 : 21,570.46 = 5,020.40 : x
  2. Step 2: Convert to fraction form
    14,381.28/21,570.46 = 5,020.40/x
  3. Step 3: Cross multiply
    14,381.28x = 21,570.46 × 5,020.40
  4. Step 4: Simplify right side
    14,381.28x = 108,292,337.38
  5. Step 5: Solve for x
    x = 108,292,337.38/14,381.28
  6. Step 6: Final answer
    x = 7,530.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.